Make her act like a bimbo.

"Like, why did I do that, I know how dandelions smell!" Ino giggled, now having the demeanor of some of the only girls Naruto noted Jiraiya having any kind of luck with.

"Uh, Ino, are you okay there?" Naruto asked.

"Like, I'm doing better than okay there handsome!" Ino said, walking up to him, getting into his personal space and feeling his shaft through his pants. "What say I take you to the back and show you a good time?" she suggested.

...so she was acting like a bimbo then, but this confused Naruto, as he preferred intelligent girls, even if he thought bimbos were kinda funny, and sexy. Still, he felt he should test something.

"Hey Ino, what is eight times nine?" he asked.

"...like, what kind of dumb question is that?" Ino giggled, not even needing to think about it. "It's obviously 72!"

Okay, good, it didn't seem to actually affect her intelligence, just her demeanor as well as removing sexual inhibitions. That might actually be fun.

"So how about it, I could, like, use my knockers on your pleasure stick, stud!" Ino winked.